<!DOCTYPE html>
<html>
  <head>
      <style>
        label {color: red}
        input[checked]:default:checked ~ label {color: green}
      </style>
  </head>
  <body onload='var e1 = document.getElementById("one");
                e1.setAttribute("checked", "false");
                document.getElementById("two").removeAttribute("checked");'>
    <form>
      <input type="radio" name="group1" id="one" value="1"/>
      <label for="one">Should be no red</label><br>
      <input type="radio" name="group1" id="two" value="2" checked/>
      <label for="two">Should be no red</label>
    </form>
  </body>
</html>
